Fizzbuzz in Rust

fizzbuzz.rs

fn main() {
    for x in 1..101 {
        let mut out = String::new();

        if x % 3 == 0 {
            out += "fizz";
        }

        if x % 5 == 0 {
            out += "buzz";
        }

        println!("{}", if out == "" {x.to_string()} else {out});
    }
}